*SUPPORT*
IN: dax fep dax OUT: PINK PINK PINK
IN: dax fep dax tufa OUT: PINK PINK PINK PINK PINK PINK
IN: kiki tufa OUT: BLUE BLUE
IN: dax fep kiki lug dax gazzer fep kiki OUT: BLUE PINK BLUE PINK BLUE YELLOW BLUE
IN: gazzer tufa lug dax fep wif OUT: YELLOW YELLOW GREEN PINK GREEN
IN: wif tufa OUT: GREEN GREEN
IN: wif lug kiki OUT: GREEN BLUE
IN: kiki fep dax OUT: PINK BLUE PINK
IN: wif fep wif OUT: GREEN GREEN GREEN
IN: kiki fep kiki OUT: BLUE BLUE BLUE
IN: wif OUT: GREEN
IN: wif gazzer OUT: GREEN YELLOW
IN: gazzer fep kiki OUT: BLUE YELLOW BLUE
IN: dax fep wif OUT: GREEN PINK GREEN

*QUERY*
IN: wif fep dax OUT: PINK GREEN PINK
IN: gazzer tufa OUT: YELLOW YELLOW
IN: kiki kiki fep wif OUT: BLUE GREEN BLUE GREEN
IN: gazzer OUT: YELLOW
IN: kiki fep kiki tufa OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: wif fep gazzer OUT: YELLOW GREEN YELLOW
IN: gazzer fep gazzer lug wif fep kiki OUT: YELLOW YELLOW YELLOW BLUE GREEN BLUE
IN: wif kiki fep dax tufa OUT: GREEN PINK BLUE PINK GREEN PINK BLUE PINK
IN: dax OUT: PINK
IN: kiki OUT: BLUE

*GRAMMAR*
wif -> GREEN 
 gazzer -> YELLOW 
 dax -> PINK 
 kiki -> BLUE 
 x1 tufa -> [x1] [x1] 
 u1 fep u2 -> [u2] [u1] [u2] 
 x1 lug x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 